* todos.el (todos-y-with-space): New defcustom.

* todos.el (todos-y-with-space): New defcustom.
(todos-y-or-n-p): New function.
(todos-delete-category, todos-move-category, todos-delete-item)
(todos-done-item-add-edit-or-delete-comment, todos-item-undone)
(todos-find-archive, todos-archive-done-item, todos-search)
(todos-read-category): Use it instead of y-or-n-p.